LHM warning light menu/pump

[Thread Bear]

Latest prob with Gary X. Heavy steering and squeals and chuntering from the LHM pump. The dual warning lights coming on. No apparent lack of LHM or water. Does this warning system pick up a lack of pressure in the LHM system as well. Pretty sure the pump is going out to lunch. Either that or the belt is failing. So if its not pissing it down another task to perform. Fortunately I think I have a spare ABS one.
Can you restore these pumps?

[RobC]

Yes, the hydraulic warning light comes on both when there's low system pressure (measured at the security valve on top of the front subframe I think) and when the LHM level in the tank is low.

And re: pump repair, check out this thread if you're feeling adventurous. http://www.bxclub.co.uk/forum/viewtopic ... tool++pump" onclick="window.open(this.href);return false;

[Tinkley]

I believe the Accumulator sphere also has some bearing on the PAS, LHM pressure to brakes and PAS, so a low pressure sphere can cause the lights to come on. Maybe someone else can confirm. One of my cars definitely has to have v tight belt on to the pump (might need recon) or it squeals. Might just be a bit of crud causing a temporary blockage. When was the LHM changed? and filters cleaned?.

[Thread Bear]

An interesting thread on pump internals. I think that might be a goer when I have more time. It might also suggest that the combined owners of BX not bin dud pumps but hang on to them as it could be possible to recon them. Indeed its my feeling on most of the active parts of the mechanics and suspension which is not common or shared with other cars. All to often when spares get hard the tales of woe are how so many parts were chucked that really were fixable and extremely expensive to re-manufacture in there entirety when only one or two elements of it need be remade. If space is a problem I will happily offer a shed in which to accumulate the stuff which will belong to the BX Club in what ever form it takes in the future. I am thinking of struts, height correctors, valves, you will have a better idea than I on what to stash. Even rear suspension arms as the naffo bearing area can be re sleeved. Its cheaper than making new ones when there are none to be had. The bush network should get stuff to find its way to Oxfordshire, pretty central other than for the North.

As to my prob I doubt it is the accumulator unless the sphere is a duffer. Its easy to change the pump so I think I will do that first as I have been meaning to look at it for sometime. It made sense that the lights monitored a pressure problem.

[Defender110]

Have you just tried tightening the belt, they do need to be tight and tightening often cures this problem.

[rutter123]

plaidiesseses can recon/exchange your hyd pump to a very high standard, i had mine done on the tzdt about 6 yrs ago by them and still good after 80k, cost then was around £120 exchange unit i expect it would be a little more now. personally never stripped a pump as i have heard the pulley and pump cover are pigs to remove, bit beyond my knowledge and capability, took the easy option.

[Thread Bear]

For a change no great dramas. The replacement system is clicking in about every 35 seconds and I have steering again. No idea how good this pump is but I can have a play with the other one as I assume a pressure test will show how good or bad they are. The belt was not the best might well have got covered in oil at sometime as it had that rubber/oil not getting together look about it. Odd as no unexpected oil leaks on the top or that side of the engine.

While I was in there I changed the intercooler for a reworked and cleaned one I made up a few evenings ago. Might sound sad but I sit with a long wiper steel and small screw driver straightening out and cleaning the grid. On my old car this made quite a difference in performance. Be interesting if it does on this one.

So later a test run as I have to go to Witney. See if this set up works.

[Thread Bear]

Yep, that's better.